package com.mock.example.common.config.security.filter;

import com.mock.example.common.utils.SecurityUtil;
import com.mock.example.modules.system.service.TokenService;
import com.mock.example.modules.system.types.LoginUser;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * token过滤器 验证token有效性
 *
 * @author: Mock
 * @date: 2023-02-26 21:54:18
 */
@Slf4j
@Component
@RequiredArgsConstructor
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {

    private final TokenService tokenService;

    @Override
    protected void doFilterInternal(
            HttpServletRequest request,
            HttpServletResponse response,
            FilterChain chain
    ) throws ServletException, IOException {
        LoginUser loginUser = tokenService.getLoginUser(request);

        if (loginUser != null && SecurityUtil.getAuthentication() == null) {

            tokenService.verifyToken(loginUser);
            UsernamePasswordAuthenticationToken authenticationToken =
                    new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}

  